Home / 28,234.56-38,963.88-15,659.52

Finding the Fourth Proportional to 28,234.56, 38,963.88 and 15,659.52

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Solution

The fourth proportional to 28,234.56, 38,963.88 and 15,659.52 is: 21,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.56 : 38,963.88 = 15,659.52 : x
  2. Step 2: Convert to fraction form
    28,234.56/38,963.88 = 15,659.52/x
  3. Step 3: Cross multiply
    28,234.56x = 38,963.88 × 15,659.52
  4. Step 4: Simplify right side
    28,234.56x = 610,155,658.14
  5. Step 5: Solve for x
    x = 610,155,658.14/28,234.56
  6. Step 6: Final answer
    x = 21,610.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.